.title{
    text-align: center;
    font-weight: bold;
    font-size: 16px;
    margin: 10px;
}

.floor {
  list-style: none;

 
}
.floor li {
    width: 49%;
    float: left;
    padding:0 1px 1px 0;
    
  }
 .floor li .van-image {
      display: block;
    }